Thursday, September 1, 2011

     Upper disturbances bringing periods of rain & storms with occasional heavy downpours across the Ohio Valley & Mid Atlantic states. Tonight's forecast is warm, muggy & mostly cloudy with chance for scattered thunder. Friday will be mostly sunny, hot & humid with scattered afternoon rain showers & storms. Summer-like forecast will bring daytime heat indices to near triple digits. Our nights will be on the warm side too. Instability & chance for severe weather outbreaks with potential for heavy downpours will linger through our Labor Day weekend. Another round of scattered storms arrives Sunday as a cold front gets hung up over our area through early Monday. Then much cooler air will filter in by next week.

     For the rest of today...we have afternoon sunshine & a lull in the thunderstorm activity. A few remnant storm cells now firing near the southern Great Lakes may threaten to the north. Meanwhile, high pressure allows for plenty of warm, moist air to lift north and east into our area this afternoon.

     Tonight will be mostly cloudy with chance of scattered storms. Things will be muggy and warm with lows in the upper 60s.

     Friday will be partly cloudy, hot & humid with highs in the low 90s. Scattered thunderstorms may pop up in the afternoon. Any storms that do fire during the day could produce heavy rains& strong damaging winds. This may result in potential for high water problems in areas that are already saturated from recent rains.

     Hazy hot and humid forecast continues Saturday. Highs will be near 92. Afternoon/evening storms are still possible. But we'll still see plenty of sunshine during the day. Folks near poor drainage areas will need to watch for high water this weekend as slow-moving storms may be dumpers. A strong cold front will bring another round of widespread showers & storms after midnight Saturday, better part of the day Sunday and into Monday morning. Cooler, drier air with more sunshine will round out the rest of next week as meteorological fall settles into the Appalachians.

     Folks in the northeast would do well to not let their guard down next week. Hurricane Katia may still threaten the Atlantic coast by the end of next week. But she's taking her sweet time in the middle of the Atlantic.

Our 850 millibar map confirms...summer ain't over yet! All that warm Gulf air lifting north & east into the region. Click to enlarge!